Cast end frame.



G. W. SCOTT.

CAST END FRAME.

APPLICATION FILED 110 7.19, 1912.

Patented Nov. 11, 1913.

R m m .T I H u r. w 6

STATES OFFICE.

GEORGEWUSGOTT, OFCH'IGAGO, ILLINOIS, ASSIGNOR TO AMERICAN CAR ANDFOUNDRY COMPANY, 015 ST. LOTTISQMISSOURI, A CORPORATION OF NEW J IE'RSEYCAST END FRAME.

To all whom/2'15 mag concern:

Be it known thatI GEORGEN'. Sco'r'r, re siding at Chicagmlllinois, andbeing a citizen of the United States, have invented certain new andusefulImprovements in Cast End Frames, of which the following is a full,clear, and exact description, such as will enable others skilled intheart to which it appertains to make and to use the same, referencebeing had tothe-accompanying drawings, which illustrate the preferredform -of the invention, though it is to be understood that the inventionis not limited to the' exact details of construction shown anddescribed, asit is obvious that various modifications thereof willoccur-to persons skilled in the art.

7 Insaid drawings: Figure 1 is a perspective view of one end of a carframe disclosing a physical embodiment of my invention.

Fig. 2 is a plan view of a fragment of the ,same,-.parts of the topbroken away to show the attachment of the -nnder-frame to theSpecification of Letters Patent.

nal sectional view-taken centrally through the underframeendand takenona plane indicated by the line3-3 of Fig. 2. Fig. l

4c is a transverse section through one of the draft sills, the sectionbeing taken on line l4 ofFig. 1.

a My invention relates to a an underfralne for 1 a railroad car, and.part cularly relates to an improvement in the ends thereof. including lthe bolsters.

It is an object of my invention to; provide a device whereby end shocksare transmitted the same time use these members as draft'S1llS,lDGl,1lIlg and bolster members.

through solid members of relatively heavy masses to the trucksvandcenter sill, and at.

.A. further .objectof my invention is to provide -a device inwhich-lading stresses,

are transmitted directly to the trucks bolster. t g

A still further object of my invention is her of parts assembled toobtain a maximum efliclency with -a minimum amount of rlveting orfastening, parts.

through solid members forming part of the;

tion from above the under-frame, and when "so positioned issubstantially in line with the web of the bolster, thereby utilizing thetransverse bracing effect of the vertical ele- "inents of the bolster.

to provide an underframe of the least numj I attain the foregoingobjects "broadly by constructing the bolster ofone casting, and

PatentedNov. 1 1,1913.

Application filed'November 19, 1912. Serial No. 732,330.

shown to be a singleI-beam.

As the construction of the underframe at opposite ends thereof issimilar, the descriptlon of one Wlll suflice, and for this purpose thereis shown in Fig. 1, positioned between the side sll-ls A and abutting anend-of the center sill B, an integral memherd, preferably of castmetal,substantially in theform of an I-beam, and which will hereinafterbe referred to as a bolster. This member has a top flange 5, preferablyflush with the top flange of thecenter sill l3 and top edge of the sidesills A, and isfastened to the side sills by means of rivets 6, whichpassthrough vertical flanges 7, connecting the top flange 5 and lowerflange 8. This -lower flange 8 is wider than the flange 5, and, as shownin Fig. 2, is of greatest width at its middle portion, narrowing towardeach end and formed integral with the said vertical flanges 7. Thevertically extending web 9 has its central portion inset, as shown moreparticularly inFi-g. 2, to form a housing 10 for the draft gear elementshereinafter referred to, and to form an inset transversely disposedbearing wall 11, abutting the center sill B and fastened thereto by thevertically extending angle-brackets 12 which angle-bracltets are rivetedto the web of the center sill and to the rear face of the bearing wall11.

"Centrally of the bolster 4- and within the housing 10 the upper andlower flanges of the bolster each have an aimed king pin hole 13, thisarrangement being such that the "king pin lt may be lHSGIl'GCllDlJOposl- Goncentrically with the lower, pin hole 13,

the lower flange 8 of the bolster has a thickened circular portion 15,shown in section lines in Fig. 3, which portion constitutes a centerbearing integral with the bolster, and also affords a strong shoulder 16adapted to support the end of the center sill B. By this construction itis noted that the corner sill directly abuts the bolster and issupported by the center bearing plate, which forms an integral part ofthe bolster, so that stresses on the center sill are transmitteddirectly to the truck through a relatively heavy member, which in turnis also adapted to transmit the lading stresses usually imposed on thismember.

Referring to Fig. 2, it is noted that the web 9 of the bolster onopposite sides of the housing is set forward a short distance to form abearing 17 for the end member hereinafter described, and also affords ameans for forming a relatively broad bearing member for transmitting endstresses from the end sills: to the center sills.

The walls 10 of the bolster housing 10, which extend longitudinally ofthe underframe, are disposed in alinement with the vertical webs 16 ofthe draft sills, hereinafter particularly described. Said walls 10 arecast integral with the top and bottom flanges of the bolster, therebyproviding a strongly reinforced abutment for the inner end of such draftsills, better adapted to resist buffing stresses than would be a singletransverse wall or vertical bolster web abutted by said draft sillsagainst its face. The rear wall 11 of the housing is reinforced by theangle brackets 12, which are in turn riveted t0 the web of tie singlecenter sill, and said brackets 12 extend outwardly far enough to comeinto alinement with said walls 10 so that bufling stresses are transmitted practically through longitudinally extending members of theunderframe.

To provide the strongest possible section of metal for the purpose and,to facilitate the application of draft gears which are generally placedin position between draft sills from below, the draft sills are formedwith top flanges, vertical webs which depend from the middle of such topflanges and with outstanding horizontal bottom flanges, thus leaving aclear space between the bottom portions of the webs of the draft sillsfor the application of such draft rigging.

Disposed between the side sills A, and in advance of the bolster is asingle hollow member 18, preferably of cast metal, which membercomprises in effect a top plate 19, substantially a trapezoid in plan,the broad base of which is outlined by a depending plate 20, overlappingthe ends of the side sills, as shown at 21, and performing all-of thefunctions common to an end sill. The narrow base of the plate 19,together with a depending flange 22 abuts the top flange 5 of thebolster 41, and transversely spaced end ribs 29 depending from oppositesides of' the flange 22 and integral with the draft sills and diagonalbraces hereinafter described, contact with the bearings 17, and arefastened thereto by rivets 23.

Depending from opposite sides of tee plate 19 are diagonal braces 24%,which serve to transmit stresses on the end sill 20 to the part of thebolster adjacent its center bearing and adjacent the center sill. Themember 18 is fastened to the side sills by means of the rivetconnections 25, which pass through the side sills adjacent their outerends and through the integral braces 2t. Formed integral with the endsill 20, top plate 19, and, as shown in Fig. 2, with the adjacent rearplates 29, is a pair of transversely spaced longitudinally extendingrelatively J-bar-shaped members with two opnositely disposed topflanges, a vertical web and a single outstanding bottom flange,constituting draft sills 26, the lower out-turned flanges 27 of whichrest upon the front portion of the center bearing portion 15 of thebolster 4. The sills 26 are disposed in a line with the inset portion ofthe web 9, so that at the bolster the inner portions of the sills 26,the inset portion of the flanges 9 and the top and bottom flanges of thebolster co-act to form a rear housing for the draft gear elementsdisposed between the sills 26, and

in longitudinal alinement with the center" sill B.

While the member 18 has been described as a top plate having dependingflanges or plates constituting end, draft sills and diagonal braces, itis to be understood that this member can be considered as a hollowcasting cored for the purpose of making it as light as possible, butbraced in all directions by angles adapted to absorb stresses incidentalto a device of this character.

As shown in Fig. 1, the end sill 20 may have a conventional form ofpush-polepoclret 28, preferably disposed in such a position thatstresses may be transmitted directly to the ends of the side sills A andto the diagonal brace 24:.

hat I claim is 1. The combination of a bolster, in the form of anI-beam, a single member constituting integrally combined draft sills connected to the web of said bolster and extending in alinement with aportion of the bolster web, and forming with the flanges and web of saidbolster a rear housing for draft gear elements.

2. The combination of a bolster, in the general form of an I-beam,including a vertical web having a portion offset from the plane thereofto form a housing for a draft gear member, a center sill abutting saidhousing, and a king pin extending through the flanges of said bolsterand within said housing in advance of said center sill.

3. An integral car bolster comprising an I-beam having an offset Webportion, with top and bottom flanges, the lower flange being wider thanthe upper flange, a side bearing bracket disposed in the angle betweenthe web and lower flange, and draft sills in connected contact with saidoffset web portion.

4. In a car underframe, side sills and a center sill, two membersdisposed between said side sills and in advance of said center sill, oneof said members being a combined end sill and draft sill, and the other,a bolster fastened to and disposed between said draft sills and centersill, portions of the web of the bolster being disposed in alinementwith the draft sills.

5. In an underframe, a bolster formed with a web portion provided withan angular offset vertical portion and draft sills connected with saidbolster, the draft sills extending in alinement with a portion of thebolster web. 7

6. In an nnderframe, side sills having vertical webs, a bolster havingan offset web portion extending parallel with said side sills, and draftsills in alinement with said offset web portions of the bolster.

7. In an underframe, rolled channel side sills, a cast bolster with topand bottom flanges extending between the flanges of said side sills,said bolster having an offset web portion extending at an angle to themedian line of the bolster, and an integral casting comprising draftsills, diagonal braces, and an end sill lapping and in alinement withsaid side sills and connected to said ofi'set web portion of thebolster.

8. In an underframe, a bolster provided with a web having offsetverticalportions extending at an angle to its median line, a singlecasting comprising draft sills, and an end sill abutting and beingsecured to said ofiset portion of the bolster web.

In witness whereof I have hereunto set my hand in the presence of twowitnesses.

GEORGE W. SCOTT.

Witnesses PHOEBE HARRIS, MAG R. FI'rE.

Copies of this patent may be obtained for five cents each, by addressingthe "Commissioner of Patents, Washington, D. G.

